diff --git a/src/backend/commands/tablecmds.c b/src/backend/commands/tablecmds.c
index 224b1c235c22..f4c4412e640a 100644
--- a/src/backend/commands/tablecmds.c
+++ b/src/backend/commands/tablecmds.c
@@ -513,7 +513,9 @@ static void ATExecRebalanceTable(List **wqueue, Relation rel, AlterTableCmd *cmd
 
 static void ATRepackTable(Relation origTable, AlteredTableInfo *tab);
 static void ATExecExpandPartitionTablePrepare(Relation rel);
-static void ATExecExpandTableCTAS(AlterTableCmd *rootCmd, Relation rel, AlterTableCmd *cmd);
+static void ATExecRebalanceTableCTAS(AlterTableCmd *rootCmd,
+                                     Relation rel, AlterTableCmd *cmd,
+                                     int targetNumSegments);
 
 static void ATExecSetDistributedBy(Relation rel, Node *node,
 								   AlterTableCmd *cmd);
@@ -17513,7 +17515,7 @@ ATExecExpandTable(List **wqueue, Relation rel, AlterTableCmd *cmd)
 	}
 	else
 	{
-		ATExecExpandTableCTAS(rootCmd, rel, cmd);
+		ATExecRebalanceTableCTAS(rootCmd, rel, cmd, getgpsegmentCount());
 	}
 
 	/* Update numsegments to cluster size */
@@ -17651,11 +17653,6 @@ ATExecRebalanceTable(List **wqueue, Relation rel, AlterTableCmd *cmd)
 		 * child partitions.
 		 */
 	}
-	else if (rel->rd_rel->relkind == RELKIND_MATVIEW)
-	{
-		ereport((Gp_role == GP_ROLE_EXECUTE) ? DEBUG1 : NOTICE,
-				(errmsg("Materialized view requires REFRESH after rebalance")));
-	}
 	else if (rel->rd_rel->relkind == RELKIND_FOREIGN_TABLE)
 	{
 		if (rel_is_external_table(relid))
@@ -17677,6 +17674,18 @@ ATExecRebalanceTable(List **wqueue, Relation rel, AlterTableCmd *cmd)
 			return;
 		}
 	}
+	else if (rel->rd_rel->relkind == RELKIND_MATVIEW)
+	{
+		/*
+		 * We can't insert data directly to an existing matview,
+		 * therefore the approach from ATExecShrinkTable() is not suitable,
+		 * and we use CTAS method for matviews.
+		 */
+		AlteredTableInfo	*tab = linitial(*wqueue);
+		AlterTableCmd		*rootCmd =
+			(AlterTableCmd *)linitial(tab->subcmds[AT_PASS_MISC]);
+		ATExecRebalanceTableCTAS(rootCmd, rel, cmd, targetNumSegments);
+	}
 	else
 	{
 		ATExecShrinkTable(rel, newPolicy);
@@ -17778,7 +17787,8 @@ ATExecExpandPartitionTablePrepare(Relation rel)
 }
 
 static void
-ATExecExpandTableCTAS(AlterTableCmd *rootCmd, Relation rel, AlterTableCmd *cmd)
+ATExecRebalanceTableCTAS(AlterTableCmd *rootCmd, Relation rel,
+						 AlterTableCmd *cmd, int targetNumSegments)
 {
 	RangeVar			*tmprv;
 	Oid					tmprelid;
@@ -17817,7 +17827,7 @@ ATExecExpandTableCTAS(AlterTableCmd *rootCmd, Relation rel, AlterTableCmd *cmd)
 
 		/* Step (b) - build CTAS */
 		distby = make_distributedby_for_rel(rel);
-		distby->numsegments = getgpsegmentCount();
+		distby->numsegments = targetNumSegments;
 
 		queryDesc = build_ctas_with_dist(rel, distby,
 						untransformRelOptions(get_rel_opts(rel)),
diff --git a/src/test/regress/expected/alter_rebalance.out b/src/test/regress/expected/alter_rebalance.out
index 0f1e88d1d6ee..24a6a1c892a2 100644
--- a/src/test/regress/expected/alter_rebalance.out
+++ b/src/test/regress/expected/alter_rebalance.out
@@ -3561,8 +3561,6 @@ insert into test_table select generate_series(1, 10);
 create materialized view mv_test_table as select a from test_table distributed by (a);
 alter table test_table rebalance 1;
 alter materialized view mv_test_table rebalance 1;
-NOTICE:  Materialized view requires REFRESH after rebalance
-refresh materialized view mv_test_table;
 select count(1), gp_segment_id from test_table group by gp_segment_id;
  count | gp_segment_id 
 -------+---------------
@@ -3600,8 +3598,6 @@ select count(1), gp_segment_id from mv_test_table group by gp_segment_id order b
 begin;
 alter table test_table rebalance 1;
 alter materialized view mv_test_table rebalance 1;
-NOTICE:  Materialized view requires REFRESH after rebalance
-refresh materialized view mv_test_table;
 rollback;
 select count(1), gp_segment_id from test_table group by gp_segment_id order by gp_segment_id;
  count | gp_segment_id 
diff --git a/src/test/regress/sql/alter_rebalance.sql b/src/test/regress/sql/alter_rebalance.sql
index f11c3b3ddb19..09c9555f5b06 100644
--- a/src/test/regress/sql/alter_rebalance.sql
+++ b/src/test/regress/sql/alter_rebalance.sql
@@ -463,7 +463,6 @@ create materialized view mv_test_table as select a from test_table distributed b
 
 alter table test_table rebalance 1;
 alter materialized view mv_test_table rebalance 1;
-refresh materialized view mv_test_table;
 
 select count(1), gp_segment_id from test_table group by gp_segment_id;
 select count(1), gp_segment_id from mv_test_table group by gp_segment_id;
@@ -483,7 +482,6 @@ select count(1), gp_segment_id from mv_test_table group by gp_segment_id order b
 begin;
 alter table test_table rebalance 1;
 alter materialized view mv_test_table rebalance 1;
-refresh materialized view mv_test_table;
 rollback;
 
 select count(1), gp_segment_id from test_table group by gp_segment_id order by gp_segment_id;